Acknowledgements
It is a pleasure to acknowledge here the contribution to the preparation of this edition made by my research assistants, Guy Bingley, Rachel Hewitt and (above all) Guy Cuthbertson. The generous grant of a term of sabbatical leave in early 2007 gave me time to prepare the final document; for that, and for various other kinds of practical support, I am very grateful to the University of Oxford, and to its Faculty of English.
St Catherine’s College, Oxford
2007